Improvement in apparatus for cutting glass globes



UNITED STATES JOHN THOMAS HADEN RICHARDSON, OF TUTBURY, ENGLAND.

IMPROVEMENT IN APPARATUS FOR CUTTING GLASS GLOBES.

Specification forming part of Letters Patent No. 117,203, dated July 18, 1871.

To all whom it may concern:

Be it known that I, J oI-IN THOMAS HABEN RICHARDSON, of Tutbury, in the county of Stafford, in England, have invented a new and Improved Machine for Cutting Glass Globes, Goblets, Tumblers, Ste., and in apparatus to be employed therefor; and -I do hereby declare that the following' is a full,- clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification, in which- Figure l representsia side elevation, partly in section, of my improved machinefor cutting glass. Fig. 2 is an inverted plan view of the glass-holder. Fig. 3 is a top View of the cutting-tool. Fig. 4 is a sectional side View of the tumbler-holder. Fig. 5 is an inverted plan view of the same.

Similarletters of referenceindicate corresponding parts.

This invention is designed to supersede the ordinary method of cutting flint-glass, which operation lias hitherto been performed with scissors, and could only be accomplished by skilled workmen of many years practice; and the invention consists in the novel and peculiar arrangement of devices for ting material to the cutting of wine-glasses, g'oblets, tumblers, or other table-glass, or of lamp or other globes and shades of circular or oval shape, as hereinafter more fullyT described.

The apparatus I use consists principally of an upright or other standard, A, screwed or otherwise xed to a horizontal bottom plate, a, and made, by preference, extensible vertically, and capable of being fixed at any required position in a socket secured to said bottom plate, so that the cutter may be inserted and adjusted in the glass to the required height. The bottom plate a is'provided underneath with casters b b, so that it is capable of being turned and moved on the supporting-table B. From the standard A project lugs c c, between which is pivoted a lever, C, at or Vnear its center, by a suitable pivot. The lower end of this lever is held off the standard by means of a spring or other suitable contrivance, d, which is fixed to the standard. At the back ofthe standard a thumb-screw, j', is placed, which allows of the spring being pressed or released, thus causing the diamond or hard-cuttin g material g at the top of the lever to press against applying' a diamond or hard-cut-V the glass with more or less force. The upper end of the standard is provided with two projecting lugs, h, between which is iitted a pair of small disks or circular pieces, i fi', of steel, which disks are allowed to turn free on their arbors. The top of the spring-lever C is formed into a head, and through this head is a rectangular or other convenieiitly-sliaped orif ce. In this orifice the piece of steel which contains the diamond g or hardcutting material is placed. The height of the cutting-point of the diamond is made to correspond with that ofthe preferably V-shaped edges of the two revolving disks i z'. The glass to be cut is in an inverted position affixed to a holder above the standard A. This holder consists of a tube, E, having' a screw-thread cut on its outside, and screwing into a corresp'nding tap in the boss F, which projects from the table B. The tube may thus be raised and lowered and held in position by jam-nuts jj, it being at all times above the center of the table B. A rod, K, drawn up by a spring, l, passes through the tube E, and has iixed at its lower end, by a fork, e, a liorseslioe-plate, m, between which and a plate, a, fitted to the end of the tube E, the foot of a wine-glass or the ilange or foot of any other article of similar formation can be clamped, the plate m being held against the lower face of said foot or flange by the power of the spring Z. For holding tumblers and other articles which have no flanges or projecting parts, I usea springclasp, o, shown in Figs. 4 and 5, the said clasp being applied to a plate, p, which is fitted between the plates mr n in the same manner in which the foot of the wine-glass was seciued therein. The spring-clasp holds the tumbler or other article by embracing its upper part in the manner indicated in Fig. 4.

The operation is as follows: The screw-tube E is adjusted to the proper height, and receives the glass in an inverted position. The table B is then set up or down, or the standard A extended or shortened to bring the cutting-'diamond to the required height, the cutter or the upper end of the standard having been previously inserted within said glass. The standard is then moved on the table to let its cutter work entirely aroiuid the glass and separate therefrom the proper part. A gas-jet or other means of heatprocess may, if

ing the glass during the cutting desired, be employed.

It Will be understood from the foregoing that the cutter may either Work against the inn er side of the glass, in which case the upper end of the standard, with the rollers i i, will be on the outer side of the same, as indicated in Fig. 3, the dotted lines showing the position of the glass, or the 'rollers z' are within and the cutter without the glass, as in Fig. l. In either case the operation Will be perfect.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The movable standard A, provided with the roller or rollers 1T, and combined with the springlever C and cutter g, all arranged substantially as herein shown and desoribed.

2. The holder for the glass to be cut, consisting of the adjustable tube E, horseshoe-plate m, spring-rod K, and plate u, all arr(l -n ged substantially as herein shown and described.

3. The standard A provided with casters, as described, and combined With the table B provided with the upwardly-projecting fla-nge, substantially in the manner herein shown and described.

The above specification signed by me this 16th day of June, 1870.

JOHN THOMAS HADEN RICHARDSON. [L 5.]

Vitnesses J As. COMERFORD, Notary Publio. THoMAs MORGAN,

21 OockspmA street, London, Gentleman. 

